Ascended climbers left of slide path via the trees with no issues. Noted 1 steep convex with 1ft crown with little runout in trees. Topped out at base of alpine region. Descended trees and slide path to waterfall which was not our normal route. Waterfall slid with entire storm snow onto previous ice crust during 2nd skiers descent. Nobody caught.
Feb. 7, 2017, 9 a.m. PST
Weather: Calm, 22F, partly cloudy.
Snowpack: 120cm pole penetration, 1.5ft ski penetration on new storm snow. 50" received in previous 72 hrs.
Area Description: Phantom Slide path waterfall.
Did you see any avalanches? Yes
Did you trigger any avalanches? Yes
Was anyone caught in an Avalanche? No